/**
 * Copyright (C) 2017 - 2020 https://github.com/joewee
 * <p>
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p>
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.bifrost.repository;

import com.bifrost.entity.Coupon;
import com.bifrost.entity.CouponDetail;
import com.bifrost.entity.MerchantStore;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.data.jpa.repository.JpaSpecificationExecutor;
import org.springframework.data.jpa.repository.Modifying;
import org.springframework.data.jpa.repository.Query;
import org.springframework.transaction.annotation.Transactional;

import java.util.List;

/**
 * @author joewee
 * @version 1.0.0
 * @Date 2017/11/17 19:41
 */
public interface CouponRepository extends JpaRepository<Coupon, Long>,JpaSpecificationExecutor<Coupon>{

    /**
     * 获取指定类型的优惠券
     *
     * @param typeCode
     * @return
     */
    List<Coupon> findAllByCouponTypeCode(String typeCode);

    /**
     * 获取指定门店发放的所有优惠券
     * @param typeCode
     * @param store
     * @return
     */
    List<Coupon> findAllByCouponTypeCodeAndReleaseBy(String typeCode,MerchantStore store);
    /**
     * 根据兑换码以及是否下架条件查询优惠券
     * @param code
     * @return
     */
    List<Coupon> findAllByRedeemCodeAndIsEnabled(String code,Boolean isEnabled);

    /**
     * 增加优惠券使用次数
     * @param couponId
     * @param quantity
     * @return
     */
    @Modifying
    @Transactional
    @Query(value = "UPDATE COUPON SET TIMES_USED = TIMES_USED + ?2 WHERE COUPON_ID = ?1",nativeQuery = true)
    int incrementTimesUsed(Long couponId,Integer quantity);

    /**
     * 减少优惠券使用次数
     * @param couponId
     * @param quantity
     * @return
     */
    @Modifying
    @Transactional
    @Query(value = "UPDATE COUPON SET TIMES_USED = TIMES_USED - ?2 WHERE COUPON_ID = ?1",nativeQuery = true)
    int decrementTimesUsed(Long couponId,Integer quantity);
    /**
     * 减少优惠券可用数量
     * @param couponId
     * @param quantity
     * @return
     */
    @Modifying
    @Transactional
    @Query(value = "UPDATE COUPON SET QUANTITY_AVAILABLE = QUANTITY_AVAILABLE - ?2 WHERE COUPON_ID = ?1 AND QUANTITY_AVAILABLE >= ?2",nativeQuery = true)
    int decrementCouponQuantityAvailable(Long couponId,Integer quantity);

    /**
     * 增加优惠券使用次数
     * @param couponId
     * @param quantity
     * @return
     */
    @Modifying
    @Transactional
    @Query(value = "UPDATE COUPON SET QUANTITY_AVAILABLE = QUANTITY_AVAILABLE + ?2 WHERE COUPON_ID = ?1",nativeQuery = true)
    int incrementCouponQuantityAvailable(Long couponId,Integer quantity);

}
